package com.atguigu.cloud.controller;

import com.atguigu.cloud.entities.PayDTO;
import com.atguigu.cloud.resp.ResultData;
import jakarta.annotation.Resource;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpMethod;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.bind.annotation.RestControllerAdvice;
import org.springframework.web.client.RestTemplate;

import java.util.List;

/**
 * @author: daiziru
 * @createDate: 2024/3/5 14:41
 */
@RestController
public class OrderController {

//    public static final String PaymentSrv_URL = "http://localhost:8001";
    public static final String PaymentSrv_URL = "http://cloud-payment-service";//服务注册中心上的微服务名称

    @Resource
    private RestTemplate restTemplate;

    /**
     * 一般情况下，通过浏览器的地址栏输入url，发送的只能是get请求
     * 我们底层调用的是post方法，模拟消费者发送get请求，客户端消费者，参数可以不添加@RequestBody
     * @param payDTO 订单请求实体
     * @return ResultData
     */
    @GetMapping("/consumer/pay/add")
    public ResultData addOrder(PayDTO payDTO){
        return restTemplate.postForObject(PaymentSrv_URL + "/pay/add",payDTO,ResultData.class);
    }

    @GetMapping("/consumer/pay/update")
    public ResultData updatePay(PayDTO payDTO){
        HttpEntity<?> requestEntity = new HttpEntity<>(payDTO);
        ResponseEntity<ResultData> exchange = restTemplate.exchange(PaymentSrv_URL + "/pay/update", HttpMethod.PUT, requestEntity, ResultData.class);
        return exchange.getBody();
    }


    @GetMapping("/consumer/pay/delete/{id}")
    public ResultData deletePayInfo(@PathVariable("id") Integer id){
        ResponseEntity<ResultData> exchange = restTemplate.exchange(PaymentSrv_URL + "/pay/delete/" + id, HttpMethod.DELETE, null, ResultData.class);
        return exchange.getBody();
    }

    @GetMapping("/consumer/pay/get/{id}")
    public ResultData getPayInfo(@PathVariable("id") Integer id){
         return restTemplate.getForObject(PaymentSrv_URL + "/pay/get/" + id, ResultData.class, id);
    }

    @GetMapping(value = "/consumer/pay/get/info")
    private String getInfoByConsul() {
        return restTemplate.getForObject(PaymentSrv_URL + "/pay/get/info", String.class);
    }

    @Resource
    private DiscoveryClient discoveryClient;
    @GetMapping("/consumer/discovery")
    public String discovery() {
        //获取consul所有实例
        List<String> services = discoveryClient.getServices();
        for (String element : services) {
            System.out.println(element);
        }

        System.out.println("===================================");

        //获取名称为cloud-payment-service的实例
        List<ServiceInstance> instances = discoveryClient.getInstances("cloud-payment-service");
        for (ServiceInstance element : instances) {
            System.out.println(element.getServiceId()+"\t"+element.getHost()+"\t"+element.getPort()+"\t"+element.getUri());
        }

        return instances.get(0).getServiceId()+":"+instances.get(0).getPort();
    }


}
